Equation of a Plane Perpendicular to a Given Plane
If the given plane has normal vector:
$$\vec n_1=A\hat i+B\hat j+C\hat k$$
then a plane with normal vector $$\vec n_2$$ is perpendicular to it if:
$$\vec n_1\cdot\vec n_2=0$$
Usage
- Used to determine planes perpendicular to a given plane.
---